TY - JOUR
T1 - Solvent Influence in the Synthesis of Lead(II) Complexes Containing Benzoate Derivatives
AU - Ayllon, Jose Antonio
AU - Vallcorba Valls, Oriol
AU - Domingo, Concepción
N1 - Publisher Copyright:
© 2024 by the authors.
PY - 2024/1/2
Y1 - 2024/1/2
N2 - A series of lead(II) complexes incorporating benzoate derivative ligands was prepared: [Pb(2MeOBz)
2]
n (1), [Pb(2MeOBz)
2(H
2O)]
n (2), [Pb
2(1,4Bzdiox)
4(DMSO)]
n (3), [Pb(1,4Bzdiox)
2(H
2O)]
n (4), [Pb(Pip)
2(H
2O)]
n (5), and [Pb(Ac)(Pip)
2(MeOH)]
n (6) (2MeOBz: 2-methoxybenzoate; 1,4Bzdiox: 1,4-benzodioxan-5-carboxylate; DMSO: dimethylsulfoxide; Ac: acetate; Pip: piperonylate; MeOH: methanol). All compounds were characterized via elemental analysis, ATR-FTIR spectroscopy, and powder XRD. In addition, the crystal structures of some compounds were elucidated. Compounds 1 and 2, involving 2-methoxybenzoate, were closely related, only differing in the presence of one extra aqua ligand found for the latter. However, this implies key changes in the studied properties, e.g., 2 shows solid-state luminescence that displays a different color as a function of the crystal orientation, while 1 does not. The crystal structure of 2 revealed a 1D coordination polymer. A similar relationship was found between compounds 3 and 4, incorporating 1,4-benzodioxan-5-carboxylate. In this pair, only 4, with aqua ligands, displayed a greenish-yellow-color solid-state luminescence. Furthermore, two new lead(II) piperonylate complexes, 5 and 6, were obtained from the reaction between lead(II) acetate and piperonylic acid. In water, all acetate ligands in the metal precursor were displaced and [Pb(Pip)
2(H
2O)]
n (5) was isolated, while in methanol, a mixed acetate–piperonylate complex, [Pb(Ac)(Pip)
2(MeOH)]
n (6), was precipitated. Considering only conventional Pb-O bonds, the crystal structure of 6 was described as a 1D coordination polymer, although, additionally, the chains were associated via tetrel bonds, defining an extended 2D architecture.
AB - A series of lead(II) complexes incorporating benzoate derivative ligands was prepared: [Pb(2MeOBz)
2]
n (1), [Pb(2MeOBz)
2(H
2O)]
n (2), [Pb
2(1,4Bzdiox)
4(DMSO)]
n (3), [Pb(1,4Bzdiox)
2(H
2O)]
n (4), [Pb(Pip)
2(H
2O)]
n (5), and [Pb(Ac)(Pip)
2(MeOH)]
n (6) (2MeOBz: 2-methoxybenzoate; 1,4Bzdiox: 1,4-benzodioxan-5-carboxylate; DMSO: dimethylsulfoxide; Ac: acetate; Pip: piperonylate; MeOH: methanol). All compounds were characterized via elemental analysis, ATR-FTIR spectroscopy, and powder XRD. In addition, the crystal structures of some compounds were elucidated. Compounds 1 and 2, involving 2-methoxybenzoate, were closely related, only differing in the presence of one extra aqua ligand found for the latter. However, this implies key changes in the studied properties, e.g., 2 shows solid-state luminescence that displays a different color as a function of the crystal orientation, while 1 does not. The crystal structure of 2 revealed a 1D coordination polymer. A similar relationship was found between compounds 3 and 4, incorporating 1,4-benzodioxan-5-carboxylate. In this pair, only 4, with aqua ligands, displayed a greenish-yellow-color solid-state luminescence. Furthermore, two new lead(II) piperonylate complexes, 5 and 6, were obtained from the reaction between lead(II) acetate and piperonylic acid. In water, all acetate ligands in the metal precursor were displaced and [Pb(Pip)
2(H
2O)]
n (5) was isolated, while in methanol, a mixed acetate–piperonylate complex, [Pb(Ac)(Pip)
2(MeOH)]
n (6), was precipitated. Considering only conventional Pb-O bonds, the crystal structure of 6 was described as a 1D coordination polymer, although, additionally, the chains were associated via tetrel bonds, defining an extended 2D architecture.
KW - Pb(II) complexes
KW - coordination polymers
KW - photoluminescence
KW - supramolecular networks
KW - tetrel bonds
UR - http://www.scopus.com/inward/record.url?scp=85183432709&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/14b436d2-6a1d-31b6-89be-ae865948d7fe/
U2 - 10.3390/inorganics12010024
DO - 10.3390/inorganics12010024
M3 - Article
SN - 2304-6740
VL - 12
JO - Inorganics
JF - Inorganics
IS - 1
M1 - 24
ER -